CVE-2024-36109
Cross-site Scripting with Markdown rendering in CoCalc
CoCalc is web-based software that enables collaboration in research, teaching, and scientific publishing. In affected versions the markdown parser allows <script> tags to be included which execute when published. This issue has been addressed in commit 419862a9c9879c. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Cross-site Scripting with Markdown rendering in CoCalc
CoCalc is web-based software that enables collaboration in research, teaching, and scientific publishing. In affected versions the markdown parser allows <script> tags to be included which execute when published. This issue has been addressed in commit 419862a9c9879c. Users are advised to upgrade. There are no known workarounds for this vulnerability.
- Record
CVE-2024-36109- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2024-35885
CoCalc is web-based software that enables collaboration in research, teaching, and scientific publishing. In affected versions the markdown parser allows <script> tags to be included which execute when published. This issue has been addressed in commit 419862a9c9879c. Users are advised to upgrade. There are no known workarounds for this vulnerability.
- Record
EUVD-2024-35885- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L - Updated
- 2026-11-03
NVD
CoCalc is web-based software that enables collaboration in research, teaching, and scientific publishing. In affected versions the markdown parser allows <script> tags to be included which execute when published. This issue has been addressed in commit 419862a9c9879c. Users are advised to upgrade. There are no known workarounds for this vulnerability.
- Record
CVE-2024-36109- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
Cross-site Scripting with Markdown rendering in CoCalc
CoCalc is web-based software that enables collaboration in research, teaching, and scientific publishing. In affected versions the markdown parser allows <script> tags to be included which execute when published. This issue has been addressed in commit 419862a9c9879c. Users are advised to upgrade. There are no known workarounds for this vulnerability.
- Record
CVE-2024-36109- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-36109 is a high vulnerability (CVSS 7.6) in Sagemath Cocalc, published May 28, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.41%, the 35th percentile. No source names a fixed version.